Spatial Neglect Midline Diagnostics From Virtual Reality and Eye Tracking in a Free-Viewing Environment

Purpose: Virtual reality (VR) and eye tracking may provide detailed insights into spatial cognition. We hypothesized that virtual reality and eye tracking may be used to assess sub-types of spatial neglect in stroke patients not readily available from conventional assessments.Method: Eighteen stroke...

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Autores principales:	Bastian I. Hougaard, Hendrik Knoche, Jim Jensen, Lars Evald
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	hemispatial neglect virtual reality immersion therapy diagnostic techniques and procedures unilateral spatial neglect eye tracking head rotation Psychology BF1-990
Acceso en línea:	https://doaj.org/article/058ca1446919483c9b4d0da74b2c8411
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spelling	oai:doaj.org-article:058ca1446919483c9b4d0da74b2c84112021-12-01T10:44:24ZSpatial Neglect Midline Diagnostics From Virtual Reality and Eye Tracking in a Free-Viewing Environment1664-107810.3389/fpsyg.2021.742445https://doaj.org/article/058ca1446919483c9b4d0da74b2c84112021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fpsyg.2021.742445/fullhttps://doaj.org/toc/1664-1078Purpose: Virtual reality (VR) and eye tracking may provide detailed insights into spatial cognition. We hypothesized that virtual reality and eye tracking may be used to assess sub-types of spatial neglect in stroke patients not readily available from conventional assessments.Method: Eighteen stroke patients with spatial neglect and 16 age and gender matched healthy subjects wearing VR headsets were asked to look around freely in a symmetric 3D museum scene with three pictures. Asymmetry of performance was analyzed to reveal group-level differences and possible neglect sub-types on an individual level.Results: Four out of six VR and eye tracking measures revealed significant differences between patients and controls in this free-viewing task. Gaze-asymmetry between-pictures (including fixation time and count) and head orientation were most sensitive to spatial neglect behavior on a group level analysis. Gaze-asymmetry and head orientation each identified 10 out of 18 (56%), compared to 12 out of 18 (67%) for the best conventional test. Two neglect patients without deviant performance on conventional measures were captured by the VR and eyetracking measures. On the individual level, five stroke patients revealed deviant gaze-asymmetry within-pictures and six patients revealed deviant eye orientation in either direction that were not captured by the group-level analysis.Conclusion: This study is a first step in using VR in combination with eye tracking measures as individual differential neglect subtype diagnostics. This may pave the way for more sensitive and elaborate sub-type diagnostics of spatial neglect that may respond differently to various treatment approaches.Bastian I. HougaardHendrik KnocheJim JensenLars EvaldFrontiers Media S.A.articlehemispatial neglectvirtual reality immersion therapydiagnostic techniques and proceduresunilateral spatial neglecteye trackinghead rotationPsychologyBF1-990ENFrontiers in Psychology, Vol 12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	hemispatial neglect virtual reality immersion therapy diagnostic techniques and procedures unilateral spatial neglect eye tracking head rotation Psychology BF1-990
spellingShingle	hemispatial neglect virtual reality immersion therapy diagnostic techniques and procedures unilateral spatial neglect eye tracking head rotation Psychology BF1-990 Bastian I. Hougaard Hendrik Knoche Jim Jensen Lars Evald Spatial Neglect Midline Diagnostics From Virtual Reality and Eye Tracking in a Free-Viewing Environment
description	Purpose: Virtual reality (VR) and eye tracking may provide detailed insights into spatial cognition. We hypothesized that virtual reality and eye tracking may be used to assess sub-types of spatial neglect in stroke patients not readily available from conventional assessments.Method: Eighteen stroke patients with spatial neglect and 16 age and gender matched healthy subjects wearing VR headsets were asked to look around freely in a symmetric 3D museum scene with three pictures. Asymmetry of performance was analyzed to reveal group-level differences and possible neglect sub-types on an individual level.Results: Four out of six VR and eye tracking measures revealed significant differences between patients and controls in this free-viewing task. Gaze-asymmetry between-pictures (including fixation time and count) and head orientation were most sensitive to spatial neglect behavior on a group level analysis. Gaze-asymmetry and head orientation each identified 10 out of 18 (56%), compared to 12 out of 18 (67%) for the best conventional test. Two neglect patients without deviant performance on conventional measures were captured by the VR and eyetracking measures. On the individual level, five stroke patients revealed deviant gaze-asymmetry within-pictures and six patients revealed deviant eye orientation in either direction that were not captured by the group-level analysis.Conclusion: This study is a first step in using VR in combination with eye tracking measures as individual differential neglect subtype diagnostics. This may pave the way for more sensitive and elaborate sub-type diagnostics of spatial neglect that may respond differently to various treatment approaches.
format	article
author	Bastian I. Hougaard Hendrik Knoche Jim Jensen Lars Evald
author_facet	Bastian I. Hougaard Hendrik Knoche Jim Jensen Lars Evald
author_sort	Bastian I. Hougaard
title	Spatial Neglect Midline Diagnostics From Virtual Reality and Eye Tracking in a Free-Viewing Environment
title_short	Spatial Neglect Midline Diagnostics From Virtual Reality and Eye Tracking in a Free-Viewing Environment
title_full	Spatial Neglect Midline Diagnostics From Virtual Reality and Eye Tracking in a Free-Viewing Environment
title_fullStr	Spatial Neglect Midline Diagnostics From Virtual Reality and Eye Tracking in a Free-Viewing Environment
title_full_unstemmed	Spatial Neglect Midline Diagnostics From Virtual Reality and Eye Tracking in a Free-Viewing Environment
title_sort	spatial neglect midline diagnostics from virtual reality and eye tracking in a free-viewing environment
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/058ca1446919483c9b4d0da74b2c8411
work_keys_str_mv	AT bastianihougaard spatialneglectmidlinediagnosticsfromvirtualrealityandeyetrackinginafreeviewingenvironment AT hendrikknoche spatialneglectmidlinediagnosticsfromvirtualrealityandeyetrackinginafreeviewingenvironment AT jimjensen spatialneglectmidlinediagnosticsfromvirtualrealityandeyetrackinginafreeviewingenvironment AT larsevald spatialneglectmidlinediagnosticsfromvirtualrealityandeyetrackinginafreeviewingenvironment
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Spatial Neglect Midline Diagnostics From Virtual Reality and Eye Tracking in a Free-Viewing Environment

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